Investigation of Microstructural Uniformity During Isothermal Forging of Ti-6Al-4V

Mirahmadi, S. Javid; Parsa, Mohammad Habibi

doi:10.1007/s11665-014-1221-3

Cited by 7 publications

(1 citation statement)

References 33 publications

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“…It is caused by the local simultaneous operation of fewer slip systems to minimize energy consumption [21,22]. With the increase of multi-directional forging passes, continued straining to need more mechanical work and consequently generates an even higher adiabatic temperature rise [23,24]. The heat softening effect may be caused by the large amount of heat generated during deformation which cannot be transferred in time, resulting in the adiabatic temperature rise, as well as the phenom- enon of recrystallization during multi-direction forging.…”

Section: Microstructure Evolution During Multi-directional Forgingmentioning

confidence: 99%

Microstructure evolution and mechanical properties of severely deformed TA15 alloy by multi‐directional forging and annealing

Ke-min

Guo

et al. 2022

Materialwissenschaft Werkst

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Multi-directional forging technology, as a representative severe plastic deformation technology, is urgent to be developed because it has strong microstructure refinement and performance improvement effects. In this paper, multi-directional forging experiments of TA15 titanium alloy with different passes were carried out at 700 °C using unrestricted multi-directional forging die structure. Then the samples of TA15 titanium alloy after multi-directional forging deformation were subjected to a high-temperature vacuum annealing treatment. The test results reveal TA15 alloy was effectively refined through multi-directional forging without any cracking with the increasing of deformation passes. The mechanism of grain refinement during multi-directional forging included dynamic recrystallization, grain crushing and adiabatic shear deformation bands refinement. The amount and grain size of recrystallization grains increased when the annealing time increased from 1 hour to 4 hours. Supplemented by annealing, the adiabatic shear deformation bands microstructure with the mixed microstructure of coarse α p and fine α s were obtained and the hardness after multi-directional forging and annealing was investigated. The yield strength and ultimate tensile strength increased by 26.1 % and 25.5 % respectively when the deformation pass increased to 3 passes compared with the initial specimen. The present work revealed that multi-directional forging deformation combined with appropriate annealing could represent an efficient route to improve the microstructure and mechanical property of TA15 alloy.

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Section: Microstructure Evolution During Multi-directional Forgingmentioning

confidence: 99%

Microstructure evolution and mechanical properties of severely deformed TA15 alloy by multi‐directional forging and annealing

Ke-min

Guo

et al. 2022

Materialwissenschaft Werkst

View full text Add to dashboard Cite

show abstract

Simulations and Experiments of the Nonisothermal Forging Process of a Ti-6Al-4V Impeller

Prabhu

2016

J. of Materi Eng and Perform

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Finite element analysis and simulation study on micromachining of hybrid composite stacks using Micro Ultrasonic Machining process

James

Panchal

2019

Journal of Manufacturing Processes

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Investigation of Microstructural Uniformity During Isothermal Forging of Ti-6Al-4V

Cited by 7 publications

References 33 publications

Microstructure evolution and mechanical properties of severely deformed TA15 alloy by multi‐directional forging and annealing

Microstructure evolution and mechanical properties of severely deformed TA15 alloy by multi‐directional forging and annealing

Simulations and Experiments of the Nonisothermal Forging Process of a Ti-6Al-4V Impeller

Finite element analysis and simulation study on micromachining of hybrid composite stacks using Micro Ultrasonic Machining process

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